19495980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15473}}^1$

素因数の和:15495

約数の個数: 72

約数和(自身を含む): 67590432

約数和(自身を除く): 48094452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15473, 30946, 46419, 61892, 77365, 92838, 108311, 139257, 154730, 185676, 216622, 232095, 278514, 309460, 324933, 433244, 464190, 541555, 557028, 649866, 696285, 928380, 974799, 1083110, 1299732, 1392570, 1624665, 1949598, 2166220, 2785140, 3249330, 3899196, 4873995, 6498660, 9747990, 19495980]

約数ペア:

[(1, 19495980), (2, 9747990), (3, 6498660), (4, 4873995), (5, 3899196), (6, 3249330), (7, 2785140), (9, 2166220), (10, 1949598), (12, 1624665), (14, 1392570), (15, 1299732), (18, 1083110), (20, 974799), (21, 928380), (28, 696285), (30, 649866), (35, 557028), (36, 541555), (42, 464190), (45, 433244), (60, 324933), (63, 309460), (70, 278514), (84, 232095), (90, 216622), (105, 185676), (126, 154730), (140, 139257), (180, 108311), (210, 92838), (252, 77365), (315, 61892), (420, 46419), (630, 30946), (1260, 15473)]